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    MULTI-DEVICE WIRELESS SENSING
    1.
    发明申请
    MULTI-DEVICE WIRELESS SENSING 有权

    公开(公告)号：US20210314732A1

    公开(公告)日：2021-10-07

    申请号：US17351810

    申请日：2021-06-18

    申请人： Cheng Chen ,  Carlos Cordeiro ,  Claudio Da Silva ,  Bahareh Sadeghi

    发明人： Cheng Chen ,  Carlos Cordeiro ,  Claudio Da Silva ,  Bahareh Sadeghi

    IPC分类号： H04W4/02

    摘要： Methods, apparatuses, and computer readable media for report identification and power control for multi-device wireless sensing in a wireless network are disclosed. An apparatus of an access point (AP) is disclosed, where the apparatus comprises processing circuitry configured to encode for transmission to a station (STA) a frame comprising a configuration hold subfield, the hold subfield indicating whether the STA should maintain a transmit configuration unchanged during uplink (UL) sensing. The processing circuitry further configured to encode for transmission a trigger frame (TF) for sensing, the TF for sensing including an identification of the STA, an indication of a resource unit (RU) for the STA to use to transmit an uplink (UL) sensing packet, and TF type subfield, the a TF type subfield indicating the TF for sensing.

    WLAN SENSING USING HIGH-EFFICIENCY (HE) TRIGGER-BASED (TB) PPDUs (HE TB PPDUs)
    2.
    发明申请
    WLAN SENSING USING HIGH-EFFICIENCY (HE) TRIGGER-BASED (TB) PPDUs (HE TB PPDUs) 审中-公开

    公开(公告)号：US20200305231A1

    公开(公告)日：2020-09-24

    申请号：US15930526

    申请日：2020-05-13

    申请人： Bahareh Sadeghi ,  Carlos Cordeiro ,  Claudio Da Silva ,  Cheng Chen

    发明人： Bahareh Sadeghi ,  Carlos Cordeiro ,  Claudio Da Silva ,  Cheng Chen

    IPC分类号： H04W88/10 ,  H04B7/06 ,  H04B7/0452 ,  H04W12/00

    摘要： An access point (AP) configured for wireless local area network (WLAN) sensing is configured to encode a trigger frame (TF) for transmission. The trigger frame allocates resource units (RUs) for receiving high-efficiency (HE) trigger-based (TB) physical-layer protocol data units (PPDUs) (HE TB PPDUs) from a plurality of client devices (non-AP STAs). The trigger frame may solicit each of the client devices to transmit an HE TB PPDU in accordance with an UL OFDMA technique or an UL MU-MIMO technique. The AP may decode the HE TB PPDUs received from the client devices and may estimate channel state information (CSI) for a radio link associated with each of the client devices based on an HE-LTF of an associated one of the HE-TB PPDUs received from one of the client devices. In accordance with these embodiments, the AP may process changes in the CSI of the radio links over time for a WLAN sensing application.

    MECHANISMS TO ENABLE PEER-TO-PEER (P2P) SENSING
    3.
    发明申请
    MECHANISMS TO ENABLE PEER-TO-PEER (P2P) SENSING 有权

    公开(公告)号：US20220150962A1

    公开(公告)日：2022-05-12

    申请号：US17454724

    申请日：2021-11-12

    申请人： Cheng Chen ,  Bahareh Sadeghi ,  Claudio da Silva ,  Carlos Cordeiro

    发明人： Cheng Chen ,  Bahareh Sadeghi ,  Claudio da Silva ,  Carlos Cordeiro

    IPC分类号： H04W74/08 ,  H04B7/06

    摘要： This disclosure describes systems, methods, and devices related to peer-to-peer (P2P) Wi-Fi sensing. A device may generate a request to perform P2P Wi-Fi sensing operations with a second non-AP STA; send the request to an AP to which the non-AP STA is associated; identify a response received from the AP, the response indicating that the non-AP STA is a sensing receiver for the P2P Wi-Fi sensing operations; identify a trigger frame received from the AP, the trigger frame associated with the P2P Wi-Fi sensing operations; identify a sensing physical layer (PHY) protocol data unit (PPDU) received from the second non-AP STA, the sensing PPDU associated with the P2P Wi-Fi sensing operations and including an indication that the second non-AP STA sent the sensing PPDU; and determine channel state information based on the sensing PPDU, the channel state information indicative of motion of people or objects.

    MEDIA ACCESS CONTROL RANGE EXTENSION
    5.
    发明申请
    MEDIA ACCESS CONTROL RANGE EXTENSION 审中-公开

    公开(公告)号：US20180131421A1

    公开(公告)日：2018-05-10

    申请号：US15474979

    申请日：2017-03-30

    申请人： Cheng Chen ,  Carlos Cordeiro ,  Claudio Da Silva ,  Solomon Trainin ,  Alexander Maltsev ,  Artyom Lomayev

    发明人： Cheng Chen ,  Carlos Cordeiro ,  Claudio Da Silva ,  Solomon Trainin ,  Alexander Maltsev ,  Artyom Lomayev

    IPC分类号： H04B7/06 ,  H04B7/0452

    摘要： This disclosure describes methods, apparatus, and systems related to media access control (MAC) range extension. A device may cause to append a training field to each of one or more beacon frames. The device may cause to send the one or more beacon frames directionally using a sector sweep to one or more responder devices during a first interval. The device may determine an extended schedule element to be sent to the one or more responder devices, the extended schedule element including one or more directional antenna sectors to be used by the device during a second interval. The device may identify a first frame from a first responder device, during the second interval, wherein the first frame is received on a directional antenna sector of the one or more directional antenna sectors corresponding to an operating sector of the first responder device.

    SIGNALLING FOR WLAN SENSING MEASUREMENT SETUP
    9.
    发明申请
    SIGNALLING FOR WLAN SENSING MEASUREMENT SETUP 有权

    公开(公告)号：US20230123619A1

    公开(公告)日：2023-04-20

    申请号：US18082752

    申请日：2022-12-16

    申请人： Dibakar Das ,  Cheng Chen ,  Carlos Cordeiro

    发明人： Dibakar Das ,  Cheng Chen ,  Carlos Cordeiro

    IPC分类号： H04L5/00

    摘要： A station (STA) (STA-1) configured for wireless local area network (WLAN) sensing establishes a sensing measurement agreement with another STA STA-2 to perform a sensing measurement setup with the other STA. The sensing measurement setup may comprise an exchange of sensing measurement request and response frames to establish sensing measurement parameters associated with a sensing measurement instance. The Sensing Measurement Setup Request frame and the Sensing Measurement Setup Response frame may be configurable to include a variable length Measurement Sensing Parameters field and a sensing sub-elements field to include one or more of the sensing measurement parameters. The sensing measurement parameters may, for example, comprise one or more of a bandwidth (BW) field, one or more fields for a number of space-time streams (STS) and a number of long-training field (LTF) and LTF repetitions that the STA is capable of transmitting and receiving, and an immediate or delayed feedback reporting field.

    BROADCAST SENSING MEASUREMENT IN WLANS
    10.
    发明申请
    BROADCAST SENSING MEASUREMENT IN WLANS 有权

    公开(公告)号：US20230025029A1

    公开(公告)日：2023-01-26

    申请号：US17957338

    申请日：2022-09-30

    申请人： Cheng Chen ,  Carlos Cordeiro ,  Dibakar Das

    发明人： Cheng Chen ,  Carlos Cordeiro ,  Dibakar Das

    IPC分类号： H04W52/02

    摘要： Methods, apparatuses, and computer readable media for wireless local area network (WLAN) private control channel are disclosed. Apparatuses of a non-access point (AP) or station (STA) are disclosed, where the apparatuses comprise processing circuitry configured to: decode a broadcast sensing parameters element, decode a broadcast target wakeup time (TWT) element, the TWT element comprising an indication of a TWT service period (SP), decode, during the TWT service period (SP), a sensing null data packet announcement (NDPA) frame, and decode, a short interframe space (SIFS) after receiving the sensing NDPA frame, an initiator-to-responder (I2R) null data packet (NDP).